Only the detonators required much sophistication, not enough info yet to know if they used cellphones. We may never be told.
Not only not enough info, but much conflicting info has been reported in the news.
I get a chuckle about the MSM news folks attempting to blow off social media for their “accuracy” issues. Looks at the lack in the MSM.
It is one thing to get it wrong. But quite another to intentionally get it wrong. i.e. Propaganda